Attachment for submarines.



ATTACHMENT FOR SUBMARINES.

APPLICATION FILED SEPT. 25, 19l6.

Patented Jan. 8,1918. f

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n e c a n l u l v s l i n n r c 1 a l l n l r a n v n I a a e l a n Il.- aZ/c/zbe/y mdf -lnventors Witnesses Attorneys W. DAUBENBEHG & E. W. APPELMAN.

ATTACHMENT FOR SUBMARINES.

APPLlcAmn FILED SEPT. 25, Isls.

1,252,408. Patented Jan. 8,1915.

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F15 uano/y and Witnesses E'Q Inventors WILLARD DAU'BENBEBG- AND EBASTUS W. APPELHAN, 0F POSTVILLE, IOWA.

ATTACHMENT FOB SUBMABINES.

Application med September 25, 1816.

yfacilitated and insured regardless of the depth of submersion and the pressure due to the weight of the water exteriorly applied; and also to provide eflicient means for; maintaining the boat inI lace with refe ce to the isubmarineunt1l its release is d 'red or necessary, without affording any in eased resistance to the operation of the su marine, and means for effectively protecting the occupants of the bubmarine in passing Vtherefrom the, .bllilld after entering, the same.

With the foregoing and other objects 1n view which will appear as the description rooeeds, the inventlon residesin the oom'- ination land' arrangement of parte and in @details of construction-hereinafter deand,4 claimed, it being "understood that changes in the precise embodiment of the invention-herein described can be made.

mechanism indicated in Fig. 2.

Fig. 4 is a general plan view of a submarine provided with thel attachment.

Fig. 5 is an end view partly broken away of the boaty attachment.

Fig. G is a detailed sectional viewshowing the means for locking the lifeboat in its seat in the submarine shell;

Fig. 7 is a detailed sectional View showing a )referred form of to oroutlet hatch.

In t e illustrated embo ime'nt of the inV Specification of Letters Patent.

' operators.

Patented Jan. 8, 1918.

Serial No. 122,144.

vention the shell l0 of the submarine (which shell may be of any suitable construction) is provided with an indent or .scat 11 of a capacity and shape corresponding approximately with the exterior of a lifeboat l2 of.

the preferred general construction and shape and which obviously may be provided with any desired varrangement of buoying compartments 13. When arranged in the seat in the shell of the'submarine, the up )er surface 'or dock 14 of the lifeboat is preferably fiush with the decl:l of the submarine, so that Yno projecting obstacle to the movement of the submarine is presented, while the bottoni arid walls of the boat are spaced from the floor l5 and ,walls of the seat to permit ot the free circulation of water between the exterior of the lifeboat und the seat, so that when submerged the pressure is eqbalied on all sides of the lifeboat to prevent an)7 tendency to suction in displacin the boat from its seat and neutralize the downward pressure -upon the deck of the boat by an equal upward pressure upon its bottom. With this arrangement the lifeboat is adapted to leave its seat and risc through the water to the surface thereof by *its* own buoyancy and without the exertion of any effort by the This .spaced relation between the walls of the boat and the surfaces of. the seat is secured by side battens 16 and bote tom battens 17 upon the latter of which the keel of'the boat rests, and anchoring screws 18 preferably extend through these bottom 'battens or rests and engage threaded sockets 19 in the shell of the submarine. Any suitn able means for operating and packin the anchoring means may be employed, ig. 6 showing a convenient arrangement wherein the stem 20 of the screw is rovided with a collar 21 and a hand whee 22, the former being arranged in a acking'box23 rovided with )acking 24 a'nxfa gland 25. e turning olf the anchor screws sufliciently to flisengage them from their sockets 19 is lsuffii cientto 'frelease and permit the rise of the boat. In thebottom of the boat is prov'l. l an entering hatehw'ay 26 adapted to igiwer with a hatchwa 27 in the bottom of the seat formed in t e submarine shell, a suitable packing ledge or batteri 28 surroundingr said opening 27 to form 'watertight Contact with the exterior surface of the boat around said entrance hatch o nin f, and mounted in a suitable loop-shapede ide 29 around and extending from said ateh ,oponing'isva ysalidin'g hatch 30. vT1135 glidejf Should bes'uitqbly packedibetween theouter Y the' latter. I o o Having thuis described the invention,what 30 und inner shells or witlls of the boat so" that when the hatch is in" place awaftertightfclo-z sure'is provided5m1d any suitable moans for as a rack 31 extevndingfrom the latchwithin thevguide engagedby the pinion 32 with: in-:tho idouvsecu'rod -to tho-.sten1-33-o a 1g W 2134. i

` f fo and especially wimrefernct,thsfaciuty means .of'rescuing the occupants of the suby marine vinfthe'even of injury to tho latter .,v'whi'leV submergd, while offering' no-projec- 2S tion from the surface of the submrine Shell, l

the top` of the boot seat beingpermgle'ntlnyf operating the hatch may be'prov'ided-such en to perm if releasqof-the bm at @y )me by' the manipulation of, means within ifs claimed' is: A 1 l A"sbmarine yvesselthinning. an texterior Sea@ and hutohway Ieadin'g' thereto, a doubleA walled boat hejl'd detahably to said sont and having a,Y kh'athway registering with` the aforesaidhathway, a, loop-Shaped guid/bef twee-n thewnlls of'1-thebo'at surroundingjand `extending fromA-thehatohwa of the boat, a hatoh. shdablel `in said gui e to close the. hatchwayY of the boat and moya-blo away 4from. said hartchway, undy means carrled'by the boat-within sind guido for 'movigthe hatch.v 4 a l. y v

In testimonythat WeLclaim the"foregoing natures Vin f the' presence oft'wo Witr'leSos,v

'WI'I-zIAjRD DAUBENBERG.

Y. H. M. PRATT. l 

